Adding test graph for python node

binaries/coordinator/examples/graphs/python_test.yml

@@ -0,0 +1,29 @@
+communication:
+  zenoh:
+    prefix: /foo
+
+nodes:
+  - id: static-string
+    custom:
+      run: python examples/nodes/python/static_string.py
+      outputs:
+        - string
+
+  - id: python-printer
+    custom:
+      run: python examples/nodes/python/printer.py
+      inputs:
+          time: static-string/string
+          time2: rust-timer/time
+  
+  - id: rust-timer
+    custom:
+      run: cargo run --example source_timer 
+      outputs:
+          - time
+
+  - id: rust-logger
+    custom:
+      run: cargo run --example sink_logger 
+      inputs:
+          time: static-string/string

binaries/coordinator/examples/nodes/python/printer.py

@@ -1,9 +1,8 @@
 from dora import PyDoraNode
 
-node = PyDoraNode.init_from_env()
+node = PyDoraNode()
 
-for i in range(100):
-    value = node.next()
-    print(value) if value is not [] else None
+for id, value in node:
+    print(f"From Python, id: {id}, value: {value}") if value is not [] else None
 
 print("printer finished")

binaries/coordinator/examples/nodes/python/static_string.py

@@ -0,0 +1,11 @@
+import time
+
+from dora import PyDoraNode
+
+node = PyDoraNode()
+
+for i in range(100):
+    node.send_output("string", b"Hello World")
+    time.sleep(0.1)
+
+print("static string finished")

binaries/coordinator/examples/nodes/python/timer.py

@@ -1,10 +0,0 @@
-from dora import PyDoraNode
-
-node = PyDoraNode.init_from_env()
-import time
-
-for i in range(100):
-    node.send_output("time", b"awef")
-    time.sleep(0.1)
-
-print("printer finished")